28465012 has 6 divisors (see below), whose sum is σ = 49813778. Its totient is φ = 14232504.

The previous prime is 28465001. The next prime is 28465049. The reversal of 28465012 is 21056482.

It can be written as a sum of positive squares in only one way, i.e., 28451556 + 13456 = 5334^2 + 116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3558123 + ... + 3558130.

Almost surely, 2^28465012 is an apocalyptic number.

It is an amenable number.

28465012 is a deficient number, since it is larger than the sum of its proper divisors (21348766).

28465012 is a wasteful number, since it uses less digits than its factorization.

28465012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116257 (or 7116255 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28465012 is about 5335.2611932313. The cubic root of 28465012 is about 305.3306885393.

The spelling of 28465012 in words is "twenty-eight million, four hundred sixty-five thousand, twelve".